Type writing machine



(N0 Model.) 4 Sheets-Sheet 1.

I M. 001m.

TYPE WRITING MACHINE.

N0. Patented July 29, 1890.

(No Model.) 4 Sheets-Sheet 2. M. GOHN. TYPE WRITING MACHINE.

Patented July 29,1890.

awu ewiw (No Model.)

4 Sheets-Sheet 3, M. OOHN.

TYPE WRITING MACHINE.

Patented July 29, 1890.

4 Sheets-Sheet 4.

(No Model.)

M. (JOHN.

TYPE WRITING MACHINE.

Patented July 29, 1890.

UNlTED STATES PATENT OFFICE.

MAX COIIN, OF MILlVAUKl-IE, \VISCONSIN, ASSIGNOR OF ONE lI'IIRD TOCHARLES COI-IN, OF SAME PLACE.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent NO. 432,981, dated July 29,1890.

Application filed July 26, 1888. Serial No. 281,090- (No model.)

To all whom it may concern:

Be it known that 1, MAX (JOHN, of Mil- Waukee, in the county ofMilwaukee and State of Visconsin, have invented certain new and usefulImprovements in Typewriting Machines; and I do hereby declare that thefollowing is a full, clear, and exact description thereof.

My invention relates to type-writers, and will be fully describedhereinafter.

In the drawings, Figure l is a vertical section of my device on line 11, Fig. Fig. 2 1s an elevation of the right-hand end. Fig. 3

is a section online 3 3. Fig. i. Fig. i is a section on line 4- 4, Fig.3. Fig. 5 is a plan view of the type-wheel and its supporting-frame.Fig. 6 is an elevation. Fig. 7 is an elevation of the carriage-drivingmechanism. Fig. 8 is a section on line 8 8, Fig. 7. Figs. 9 and 11 aredetails, and Fig. 10 is a partial end view.

A is the base of my type-writer, which may set upon a table or any othersuitable support. From the ends of this base project two arms A, and theupper ends of these arms form bearings for a shaft a, which shaft formsone side of the type -wheel frame 1). The shaft Z) of the type-wheel Ghas one of its bearings in the shaft a and the other in the front side aof the type-wheel frame. The shaft 1) carries a spiral spring I), whichis attached to it at one end and to the front side piece a, and theother end of shaft 71 carries a sheave c, which is connected by a cord(Z with one end of an angle-lever D, that is pivoted to the center ofthe chord l) of a segment D that is supported by the type-wheel frame atone corner, and may form part of said type-wheel frame. The front ,end Dof angle-lever D carries a pointer c and a pin 6', which latter engagesindentations e in the segment D and the segment D has engraved orotherwise marked upon it the letters and characters usually found uponthe key-boards of type-writers, arranged in convenient relationship toeach other. The shaft to earries a retracting-spring I, which engagesone of the posts A at one end and serves to lift the front end of thecarrier-frame B after it has been depressed by pressure on the handle oflever D just as the spring Z) serves to wind the shaft 1) in onedirection after it has been drawn by the action of cord d against thetension of the springin another direction.

f are the inking-rollers of the typewheel. An arm G depends from thefront side of the type-wheel frame, and has a flange G, which has a slotthat is just large enough to freely admit an anvil G to the letterimmediately over it on the type-wheel, and this anvil should be coveredwith chamois skin or some soft material which will serve to cushion thetype.

II is the paper-carriage, which has two rollers Ii 11?, the journals ofwhich have their bearings in the end pieces of the carriage, and thecarriage is supported on rails 71 which receive sheaves 71 that arepivoted on the carriage. The rear side piece 1 of the carriage hascog-teeth 1" on its lower side. The short shaft j, that has its bearingsin astandardj and in the rear supporting-rail of the carriage, carries acog-wheel K, that engages with the cog-teeth on the rail 1'. This shaftalso carries a ratchet-wheel L, by which it is operated. Swung to thehub of the ratchetwheel L are the arms m of a lever L, and to thisleveris pivoted a spring-actuated pawl M. The outer end of lever L isconnected by a pin N and slot N with a lever O, which is pivoted on astud 0, near the right end of the rear rail 7L, and connected by anupright link 1) to the right side of the type-wheel frame, so that whenthe type-wheel frame is depressed by an operator manipulating the handleof lever D the arm of lever L will be lifted to cause the pawl M to jigthe ratchetwheel L one tooth. A stop-pawl Q is pivoted to the rail 71011the opposite side of the ratchet-wheel to the pawl M, and normallyserves to stop the ratchet and prevent a return movement of it; but whenthe carriage is to be retracted to begin a new line a lever P, which ispivoted to the left end of the supporting-rail 7L, may be brought intoplay. This lever has a pin 1) on its inner end, which engages the underside of pawl Q, and pawl Q has a finger q, that projects into a loop 011the upper side of pawl M, and therefore when the left end of the lever Pis depressed the pin 1) will lift pawl Q and pawl Q will lift pawl M,and these pawls will be then out of engagement with ratchet-wheel L andthe carriage may be drawn back by hand. In addition to thepaWLand-ratchet mechanism for actuating the paper-carriage, I propose touse a weight R, which is suspended bya cord R over a pulley R Thisweight takes up lost motion when the carriage is moved forward, and isprovided with a projecting arm 1' for engagement with a handle 7 of theclapper of a bell T when a line is about to be completed. Thecarrier-frame H is provided with a table S for the paper, which is helddown and guided by rollers T, the bearings of which are in arms T, thatare hinged to standards T and these arms are held down so as to pressthe rollers on the paper by springs T which act upon shoulders t. One ofthe standards is adapted for being adj usted in a slot S in the table S,by means of a screw-shaft S to accommodate the'various sizes of paper.

A scale-plate U is suspended by arms U over in front of the rollers, andan arm V, that is secured at one end to one of the standards V thatguide the weight R, projects to the center and front of the machine,where it is provided with a pointer to, that indicates the position ofthe carriage with reference to the anvil.

The shaft of the lower paper-roller H bears in the upper portion of aslot in the end pieces of the carriage H, and has an elastic connectionH with the shaft of the roller H. This may be a spiral or any otherspring.

The operation of my device is as follows: The type-wheel is held upnormally by the spring E, and when a letter or character is to be madethe operator lifts the handle D until the point of pin e is disengagedfrom an indentation e and then moves the handle until the pointer 6reaches the desired letter or character, when he depresses the handle,and with it the type-wheel and frame, to cause the type-wheel to come incontact with the paper and print a letter or character. This also,through lever O, jigs the paper-carriage once before the wheel reachesthe anvil, and as each line is finished and a new one begun the paper isdrawn in by turning the thumbpiece X, which is locked by a pawl y andratchet Y. During the forward travel of the roller-carriage the weightRand cord R serve to take up lost motion and produce even spacing. Thetype-wheel frame may be guided and limited as well as cushioned in anysuitable-manner.

WV is a shield for supporting and guiding the paper as it enters fromthe front.

Blank spaces are provided on the face of the type-wheel for the purposeof spacing, and these spaces are produced just as letters or charactersare.

To prevent the type-wheel from making more than one revolution in caseof the stretching or breaking of the cord, I provide the hub of wheel 0with a shoulder c, which engages a similar shoulder c on the rail (1.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination of the arms A, the spring-controlled frame B, havingits bearings in the arms and provided with the indeX-segment D thespring-controlled shaft 19, having its hearings in said frame, thetype-wheel O and sheave 0, fast on said shaft, the pivotal angle-leverD, arranged with relation to the index-segment and having a flexibleconnection (1 with said sheave, a reciprocative paper-carriage, and ananvil opposed to said type-Wheel, substantially as set forth.

2. The combination of the rotary adj ustable spring-controlledtype-wheel 0, having its hub provided with the shoulder e, and the rail(1, provided with the shoulder c in the path of the one on said hub,substantially as set forth.

The combination of the reciprocative paper-carriage provided with therollers H H", the table S and standards T the shouldered arms T, hingedto the standards, the springs T arranged to impinge against theshoulders on said arms, and the rollers T, having bearings in said arms,substantially as set forth.

4. The paper-carriage H, having the rail '6, provided with cog-teeth,the shaft j, having stationary bearings, the cog-wheel K, fast on theshaft and in mesh with the teeth on said rail, the ratchet-wheel L, alsofast on said shaft, the lever L, having the arms m, loose on the hub ofthe ratchet-wheel, the spring-pawl M, pivoted to the lever, the pin N,projected from said lever, another lever O, havingthe slot N engaged bysaid pin, the hinged frame B, and the link 1), connecting the latterlever and frame, substantially as set forth.

5. The paper-carriage H, having the rail t', provided with cog-teeth,the shaft j, having stationary bearin gs, the cog-wheel K, fast on theshaft and in mesh with the teeth on said rail, the ratchet-wheel L, alsofast on said shaft, the lever L, having the arms m, loose on the hub ofthe ratchet-wheel, the springpawl M, pivoted to the lever and providedwit-h the loop g the pin N, projected from said lever, another lever 0,having the slot N engaged by said pin, the hinged frame B, thelink p,connecting the latter lever and frame, the stop -pawl Q, engaged with aratchetwvheel L and having the finger q projected into said loop on pawlM, and the le ver P, provided with the pin 12, arranged to impingeagainst the under side of said pawl, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, atMilwaukee, in the county of Milwaukee and State of WViscousin, in thepresence of two witnesses.

MAX COHN.

Witnesses:

J on GRASS, S. S. STOUT.

